Re: [PATCH 3/4 v3] smp_call_function_many: handle concurrent clearingof mask

[Catalin Marinas]

On Tuesday, 15 March 2011, Milton Miller <miltonm@xxxxxxx> wrote:
> Mike Galbraith reported finding a lockup ("perma-spin bug") where the
> cpumask passed to smp_call_function_many was cleared by other cpu(s)
> while a cpu was preparing its call_data block, resulting in no cpu to
> clear the last ref and unlock the block.

I missed your patch and just posted something similar. I'll leave it
to you then ;)

https://lkml.org/lkml/2011/3/15/296

Catalin

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Catalin
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